The Bronx–Whitestone Bridge (colloquially referred to as the Whitestone Bridge or simply the Whitestone) is a suspension bridge in New York City, carrying six lanes of Interstate 678 over the East River. The bridge connects Throggs Neck and Ferry Point Park in the Bronx, on the East River's northern shore, with the Whitestone neighborhood of Queens on the southern shore. With a center span of 2,300 feet (700 m), the Bronx–Whitestone Bridge once had the fourth-largest center span of any suspension bridge in the world. The bridge has a total length of 3,700 feet (1,100 m), and its towers reach 377 feet (115 m) above water level.

As of March 31, 2019, drivers E‑ZPass users with transponders issued by the New York E‑ZPass Customer Service Center pay $6.12 per car or $2.66 per motorcycle. All E-ZPass users with transponders not issued by the New York E-ZPass will be required to pay Toll-by-mail rates, that is, $9.50 per car or $4/motorcycle.
POST your explanation why there is a different charge for NY E-Z Pass holders and non-E-Z Pass holders on the Whitestone Bridge? Is the toll elastic or inelastic?